Make a checkpoint and a save/load GUI?

I am trying to build a fun obby for people to play, but I do not know how to make checkpoints. Can anyone tell me how to do it and the script I need to insert into it?

Aother question is, how do I make a Save/Load GUI? I need the script to insert into it.

`local spawn = script.Parent spawn.Touched:connect(function(hit) if hit and hit.Parent and hit.Parent:FindFirstChild("Humanoid") then local player = game.Players:GetPlayerFromCharacter(hit.Parent) local checkpointData = game.ServerStorage:FindFirstChild("CheckpointData") if not checkpointData then checkpointData = Instance.new("Model", game.ServerStorage) checkpointData.Name = "CheckpointData" end

	local checkpoint = checkpointData:FindFirstChild(tostring(player.userId))
	if not checkpoint then
		checkpoint = Instance.new("ObjectValue", checkpointData)
		checkpoint.Name = tostring(player.userId)
		
		player.CharacterAdded:connect(function(character)
			wait()
			character:WaitForChild("HumanoidRootPart").CFrame = game.ServerStorage.CheckpointData[tostring(player.userId)].Value.CFrame + Vector3.new(0, 4, 0)
		end)
	end
	
	checkpoint.Value = spawn
end

end)`

what you have to do is insert a script into your spawn location and after rename it checkpoint script next you insert another script into your spawn location you can choose to rename it make sure to name all your spawn locations as numbers this will be the stage number

function ot(hit) if hit.Parent ~= nil then local player = game.Players:playerFromCharacter(hit.Parent) if player ~= nil then if player.leaderstats.Stage.Value == script.Parent.Name - 1 then local h = hit.Parent:FindFirstChild("Humanoid") if h ~= nil then if h.Health ~= 0 then player.leaderstats.Stage.Value = script.Parent.Name end end end end end end

script.Parent.Touched:connect(ot)